Marvin is a 25-year-old man with intellectual disability. He has very simple communication and manual skills, but has great difficulty in reading and math. Based on this description, Marvin's IQ score most likely falls between:
a. 0 and 20
b. 20 and 34
c. 35 and 49
d. 50 and 70
e. 71 and 90.

Marvin's IQ score most likely falls between C. 35 and 49.

Explanation:

Marvin fits the description of people with moderate intellectual disability, who have an IQ of 35 to 49. People with moderate intellectual disability are capable of communicating in a simpler level, but show signs of development delays. They can often take care of themselves, although some need help or more instruction than a typical person. They can learn basic safety skills, but have problems in social situations due to their difficulty in interpreting social cues.

do all equestions have to be answered